Wire-stripping machine.



M, PESSIN.

WIRE STRIPPING MACHINE.

APPLICATION FILED JAN. 30, 1912v 1,052,271. Patented Feb.4, 1913.

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WITNESSES lumvron 7 0r I Z ATTORNEYS M. PESSIN.

WIRE STRIPPING MACHINE.

APPLICATION FILED JAN. 30, 1912.

Patented Feb. 4, 1913.

2 BHEETS-8HEET 2.

INVENTUR dyorrzls finsu'z'n HTTOR'IEYS WITNESSES UNITED STATES PATENT OFFICE.

MORRIS PESSIN, OF NEW YORK, N. Y.

. WIRE-STRIPPING MACHINE.

Specification of Letters Patent.

Patented Feb. 4,1913.

Application filed January 30, 1912. Serial ms. 674,880.

from any desiredlength of wire.

Another object of the invention is to provide an improved structure which will straighten lengths of wire, sever the insulating matter thereon, and then remove the severed portions, each independent part of the insulation bemgremoved to different receptacles. p I

In carrying out the objects of the invention, a wire straightening mechanism is provided which straightens and feeds the wire into a guiding tube formed with slits through which knives project for cutting or slitting the insulation on the wire longitudinally. One of the coats of insulation is enaged by a pair ofrollers and removed rom the wire as the rollers progress through the machine, and the other insulation is removed by a second pair of rollers which are assisted by a guiding member which causes the insulation to positively leave the wire. The wire is then guided to a drum upon which it is wound so that the wire leaving the machine is wound on the retaining drum and the various layers of insulation .are removed and ositioned in various independent receptac es provided therefor.

longitudinal sectional view through Fig. 1.

approximately on the line 33; and Fig. i is an enlarged detail fragmentar view approximately on the line 4-4 of ig. 3.

Referring to the accompanying drawings by numerals, 1 indicates a supporting framework (if any desired kind and provided'with any desired number of longitudinal members and transverse members, as occasion may require, for sup orting the variousmoving parts of the evice. .Arranged at one end of the fran'iework is a receptacle 2 of any'de'sirixl kinrh'adapted to contain the wire before the insulation is re-- moved, and from which the wire is fed into the machine. At the opposite end of the receptacle 2 is a drum 3, upon which the stripped wire 4 is wound. When the wire 5 leaves the receptacle 2 the same passes between rollers 6 and fromthence upward and over guiding rollers 7, 8 and 9. the rollers 7 and 8 is a resiliently positioned roller 10, and between the rollers 8 and 9 is a roller 11 held resiliently against the wire 5.

The rollers 6 and T to 11 inclusive, are

designed to actas straightening means for straightening the wire previous to its entrance into'a guiding tube 12. The guiding tube 12 is formed with slots13 and 14 through which project the knives 15 and 16'.

.The knives 15 and 16 are designed to cut entirely through all of the insulation on the wire. but not to cut into the interior of the stripped wire 4., Wires 4 and 5 are the same exceptthat one is shown with.insulation and the other without. The guidin tube 12 is supported by cross bars 17 an 18 held in place by suitable bolts 19 projecting through slots 20 formed in a bracket 21 forming part of the framework 1. The guiding tube 12 is made adjustable so that larger or smaller tubes may be used accord-" ing to the size of wire being operated upon. The knife 15 is preferably-mounted so as to not be adjustable vertically, but the knife .16 may be freely adjusted vertically as the same is supported by an arm '22 pivoted at '23 and held in any adjustable position by an adjusting member 2-1. If it is desired to operate upon a larger wire than wire 5, a larger tube 12 is placed in position and the tube is raised to the desired extent so that the knife 15 will not injure the wire. The knife 16 is-then adjusted by the member 24 the knife 15 will not injure the wire. The knives l5 and ,16 are rigidly connected with shafts and 26' so that whenever the gear wheels 27 and 28 turn, the knives will also turn. the gear wheels 27 and 28 being keyed or otherwise secured to the shafts 25 and 26. The shaft 25 carries at its outer end a pu'lley 29 which accommodates-a belt 30 fitting over a driving pulley 31 rigidly secured to the shaft 32. The shaft 32 has rigidly'connected therewith a drum 3 and a power pulley 33; The power pulley 33 receives power from any suitable source through a 5 belt 34. I

As clearly shown in Figs. 1 and 2, the arms 22 are rigidly connected with the shaft 32 which carries an adjusting arm 35 rigidly secured thereto and adjusted by the adjusting member 24. By these means the knife 16.may be raised and lowered whenever desired. In Fig. 1 a structure ac commodating two knives is shown, but it will be evident that one, two, or more knives may be used without departing from the spirit of the invention.

After the wire 5 has passed through the guiding tube 12, the outer insulation is passed over the roller 36 and downward between rollers 37 and 38 einto a, receptacle 39. The outer layer of insulation is usually formed of fabric of some kind so.

thatby removing the. outer layer as just'described, the same is segregated from the inner layer 40 jwhich'is usually of rubber .or some insulating gum mixture. The insulating layer of .rubber'40 engages a guiding member 41 which .is provided with a tapered aperture 42 for accommodating the stripped wire 4. The smaller end of the aperture 42 is designed to be only sulficiently large for accommodating wire 4=so that the insulation 40 will move downward over the inclined surface 43 and will finally pass between rollers 44 and 45 and from thence into a box or receptacle 46. The rollers 37 and 38 aredesigned to pull somewhat against the outer insulation '47, while the rollers 44 and 45' pull against the inner insulation 40 so as to cause a proper removalthereof from the wire in case the same are inclined to stick.- The guiding member 41 is held adjustably in position by bolts 48 passing through suitable slots 49 in the cross brace 50. This adjustment is desirable in order to accommodate larger orsmaller wires. It will of course be understood that theguiding'member" 41 must be provided with an aperture 42.0f the proper 50 size for any particular wire.

' The rollers 44 and 45 and also the rollers 37 and 38 are connected together by a suitable train of gearing so as to o erate together. The roller 38 is connecte through an idler 38 to the gear wheel 28'so that power is transmitted to the respective rollers for'rotating the same as well as to the knives 15 and 16. 7

Having thus 'described my invention, I claim'as new and desire to secure by. Letters Patent 2- 1. In a wire stripping machine, a pair of oppositely disposed co-acting rotary knives, a tube slotted on opposite sides arranged so that. the knives Wlll project through said "co-acting knives means jf slots into the tube, means for directing an insulated wire'through said tube whereby the insulation thereof will be slit, meansfor pulling the insulation from the wire after the insulation has been slit'by said knives.

2. In a wire stripping machine, a pair of oppositely disposed rotating knives, a guiding tube arranged between said knives and formed with slits for permitting the knives to project into the tube whereby when a wire having insulation thereon is passed through the tube the insulation thereon will be slit longitudinally, and means for removing the insulation after the same has been slit. a

3. In a wire stripping machine, a pair of oppositely. disposed co-actingrotary knives, a tube fslottedsonopposite sides arranged so that the'knivesvvill project through the slots in the' 'tube" nd means for directing an insu'lated w hrough said tube whereby said knives 'wi' slit the insulation'on the wire longitudinally.

4. In a-wire stripping machine, a pair of rotating oppositely disposed co-acting knives, means for forcing a wire having insulation thereon past said knives in such a direction as to permit said knives to slit the insulation longitudinally, means for strip ing the insulation fromthe-wire after. the insulation has been slit, and means for guidingthe wire to a point of discharge.

5. In a wirestrippingmachine, a pair of or 'ding a wire the iiiives will slit "longitudinally, means for .s 'ding an insulated wire to sea nd' means for separately removing:- trippedwire and g the insulation. I I 105 6. In a wire stripping machine, a pairof rotating knives, a tube for guidmgan 1nsulated wire past said knives so that the knives will slit the insulation longitudinally, means for adj'ustingsaid knives in order to no regulate theirdistance'apart whereby different sized wires may e accommodated, means for. adjusting the position of the uiding tube, and a plurality of means for disposing of the stripped wire and insula- 5 tion after the insulation has been slit.

7-. In a wire stripping machine, a pair of oppositely disposed co-acting rotary knives,

a tube slotted on opposite sides arranged so that the knives will project through said 120 slot into the tube, means for directing an insulated wire through said tube whereby said knives willslit the insulation on the wirelongitudinally, a pair of rollers engaging the insulation and pullingthe-same from 125 the wire after the insulation as been cut by said knives, means for guiding the insulation to said rollers, and means for guiding the stripped wire to a discharge point.

8. In a wire stripping machine, means for 130 past said kniv' t the insulatio slitting the insulation of a wire longitudinally, mde ndent means for removing each layer of insulation from said wire, and means for guiding the wire to a point of discharge.

9. In a wire stripping machine, means for slitting a wire insulation made of a gummed substance and a fabric substance, a pair of rollers for removing the fabric substance from the wire, means for guiding the fabric substance to said rollers, a second air of rollers for removing the gummed su tance from said wire, and a guiding and substantially feeding structure for guiding the gummed substance to said second mentioned rollers, and means for guiding the stripped wire to a point of discharge.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

MORRIS PESSIN.

Witnesses:

HARRY MARK, A. L. KITCHIN. 

